Unreal Engine Issues
Unreal Engine Issues
EditorOnly Actor-subclass blueprints cause SavePackage warning "A dependency '%s' of '%s' was filtered, but is mandatory"
Gameplay - Blueprint - Apr 20, 2020https://udn.unrealengine.com/questions/570767/filtering-bug-with-iseditoronlyactor.html On a a blueprint that inherits from an actor class such as FunctionalActor, the user can mark Actor::bIsEdito ...
Wake/Sleep events are not properly handled with Welding
Simulation - Physics - Nov 25, 2019Wake/Sleep events are not generated for components set to generate wake events after having a component not set to generate wake events welded to them. Wake/Sleep events are also not dispatched for ...
Copy Procedural Mesh from Static Mesh Component does not work correctly when the order of material slots is different
Rendering - Oct 15, 2019This issue occurs when the section and material slot order do not match In this sample project:[Link Removed] According to a report from the licensee, the order of Sections seems incorrect.[Link R ...
Sorting a Blueprint variable into a subcategory separates variables into separate category structures
Gameplay - Blueprint - Oct 14, 2019Within the Blueprint Editor, it is possible to create subcategories for variables to be sorted into. Doing so separates variables not nested into subcategories out into standalone, top-level structu ...
UCharacterMovementComponent OldVelocity is pre-additive while Velocity is post-additive
Gameplay - Player Movement - Oct 10, 2019In UCharacterMovementComponent code such as PhysFalling, RestorePreAdditiveRootMotionVelocity is called before FVector OldVelocity = Velocity; leaving OldVelocity in a pre-additive state making furt ...
Playing as a Pawn that is a Duplicate of a Blueprint Class doesn't create an Attribute Set
Gameplay - Oct 1, 2019Creating a duplicate of a Blueprint class that has an AttributeSet seems to be interfering with the creation of the AttributeSet. ...
Landscape Layer Blend generates bad code for preview shader
Tools - Landscape - Sep 23, 2019It breaks only when compiling the preview shader. Adding a preview weight to the Layer0 on the Layer Blend node fixes the problem. The source of the bug is in UMaterialExpressionLandscapeLayerBlend ...
Renaming Sprite Actor in Struct Blueprint, and closing the Editor causes de-reference
Gameplay - Sep 12, 2019Paper Sprite actor set as a Default Value in a Blueprint Struct is set to none, when the sprite is renamed, saved, and the Engine is restarted. ...
Memory leak with disable rendering
Rendering - Sep 2, 2019When executing "ShowFlag.Rendering 0", it occur the memory leak because it can't run RHICmdList.ImmediateFlush(). The following code is a workaround. DEC_MEMORY_STAT_BY() is ImmediateFlush. Witho ...
State Machine events "Left State Event" and "Fully Blended State" not firing when animation is sequence is playing
Anim - Gameplay - Aug 28, 2019State Machine events "Left State Event" and "Fully Blended State" not firing when animation is sequence is playing at the moment you enter/leave the state. ...